Orange, lemon, grapefruit and other citrus fruit, rich in bio-flavonoids, can enhance the human skin, lungs, gastrointestinal tract and liver of some enzymes to help the fat-soluble carcinogens into water-soluble , and so that it can not easily be absorbed and excreted. At the same time, they can enhance the body of important anti-cancer substance – vitamin C, absorptive capacity. Vitamin C can enhance immunity, prevent the formation of strong carcinogenic nitrosamines, prevention and treatment of digestive tract cancers have a certain effect.
